“When Chris talks, he has a very clear and authoritative manner – but don’t let yourself be lulled into a feeling of complete confidence that he’s right. Yes, he used to be a spacewalking instructor and evaluator and he’s Mr. EVA, but he hasn’t done a walk since 2001. There have been a lot of changes since then. I don’t want the junior trainers to ignore that little voice inside and not question something just because it’s being said with authority by someone who’s been here a long time.” At.”